$ git clone -n http://git.inferitos.ru/rpms/docbook-dtds /var/lib/mock/inferit-8_8-build-13438-23032/root/chroot_tmpdir/scmroot/docbook-dtds
Cloning into '/var/lib/mock/inferit-8_8-build-13438-23032/root/chroot_tmpdir/scmroot/docbook-dtds'...
$ git fetch origin changed/i8c/docbook-dtds-1.0-69.el8:KOJI_FETCH_HEAD
From http://git.inferitos.ru/rpms/docbook-dtds
 * [new tag]         changed/i8c/docbook-dtds-1.0-69.el8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e0b7d33 edit changelog for import docbook-dtds-1.0-69.el8